Hi there, I'm the guy with the linked MDD G4 (http://www.pricepages.org/g4_mod/).

I the glow tubing was actually intended for a car, but it works just fine in the computer (as you see). It was bought from a local department store. As an added bonus, since it has the standard 12v auto power plug, I could splice it right into the computer's power. A friend of mine said that the glow tubing works only for a few months then burns out, but it is over two years later and is still going fine.

The only color that you can't remove is the apple logos that are molded into the side panels.

If you go the route of removing the paint with alcohol, be sure to use 90% or better. It's the difference between scrubbing for hours and the paint falling off after a short soak.